Simultaneous adsorption of selected endocrine-disrupting compounds at trace level of concentration by using novel calcium-based metal-organic framework

IF 4.8 3区材料科学 Q1 CHEMISTRY, APPLIED Microporous and Mesoporous Materials Pub Date : 2024-08-24 DOI:10.1016/j.micromeso.2024.113316

Fahren Fazzer Sukatis , Muhammad Raznisyafiq Razak , Ley Juen Looi , Hong Ngee Lim , Mohd Basyaruddin Abdul Rahman , Ahmad Zaharin Aris

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Abstract

The existence of newly identified water contaminants, such as endocrine-disrupting substances (EDCs), in polluted water sources represents substantial environmental and health concerns. Over novel mixed-linker porous calcium-based metal-organic frameworks (Ca-MIX), the simultaneous adsorptive removal of 17-ethynylestradiol (EE2), perfluorooctanoic acid (PFOA), and bisphenol A (BPA) from aqueous solutions has been studied in terms of adsorption kinetics, adsorption isotherms, and water chemistry effects. The adsorption isotherm and kinetics fit the Langmuir model well and followed pseudo-second-order kinetics. Generally, all three compounds adsorb over Ca-MIX depending on the chemical properties of both the adsorbate–adsorbent and water matrix chemistry. Electrostatic and hydrophobic interactions may explain the adsorption mechanism between EDCs and Ca-MIX. The order from the best to worst removal efficiency was EE2 > PFOA > BPA when Ca-MIX was used as the adsorbent. In conclusion, it can be suggested that this material could be used as an adsorbent capable of removing harmful emerging contaminants in water at trace exposure levels.

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利用新型钙基金属有机框架同时吸附痕量浓度的特定内分泌干扰化合物

污染水源中存在新发现的水污染物，如干扰内分泌的物质（EDCs），是环境和健康的重大问题。研究人员利用新型混合连接剂多孔钙基金属有机框架（Ca-MIX），从吸附动力学、吸附等温线和水化学效应等方面研究了从水溶液中同时吸附去除 17-乙炔基雌二醇（EE2）、全氟辛酸（PFOA）和双酚 A（BPA）的问题。吸附等温线和吸附动力学与 Langmuir 模型十分吻合，并遵循假二阶动力学。一般来说，所有三种化合物都能吸附在 Ca-MIX 上，这取决于吸附剂-吸附剂和水基质化学性质的化学特性。静电和疏水相互作用可以解释 EDC 与 Ca-MIX 之间的吸附机理。使用 Ca-MIX 作为吸附剂时，去除效率从高到低的顺序为 EE2 > PFOA > BPA。总之，这种材料可用作一种吸附剂，能够去除水中痕量接触水平的有害新污染物。

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来源期刊

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.